def normalize_spectrogram(spectrogram, fbpp, fsps, freq_band):
    '''Normalize a Spectrogram according to the specified parameters.
    
    fbpp - normalized frequency band per pixel
    fsps - normalized frequency snapshots per pixel
    freq_band - normalized frequency band
    '''
    height = freq_band / fbpp
    width = (fsps / spectrogram.get_fsps()) * spectrogram.freq_snapshots.shape[1]
    return spectrogram.resize_and_change_freq_band((height, width), freq_band)